This paper introduces a special issue of International Migration Review and overviews the
promise and limitations of organic data for migration research. We explain different …

This work studies changes in the demographics of the different spatial units that make up the
Andalusia region in Spain throughout the year 2021, with the aim of seeing the progressive …

When a crisis hits, information is scarce. Who is affected? How is the situation developing?
In such adverse events on an international scale, whether the Ebola outbreak in West Africa …

Population data is crucial for policy decisions, but fine-scale population numbers are often
lacking due to the challenge of sharing sensitive data. Different approaches, such as the use …

The escalation of conflict in Ukraine has triggered the largest refugee crisis in Europe since
WWII. As of early April 2024, over 5.9 million people have fled Ukraine. Large‐scale efforts …

One of the strongest empirical regularities in spatial demography is that flows of migrants are
positively associated with population stocks at origin and destination and are inversely …

Digital trace data presents an opportunity for promptly monitoring shifts in migrant
populations. This contribution aims to determine whether the number of European migrants …

When the 2022 Russian full-scale invasion of Ukraine forced millions of people to leave their
homes, officials worldwide scrambled to estimate the number of people who would seek …

Estimating the numbers and whereabouts of internally displaced people (IDP) is paramount
to providing targeted humanitarian assistance. In conflict settings like the ongoing Russia …

Following the assumption that trends of online queries may indicate intentions and help to
predict human behavior, this study addresses the general issue of analyzing, nowcasting …